Lua APA (7ú heag.)

Brue, S. L. (2019). Essentials of economics (4th edition.). McGraw-Hill Education.

Lua i Stíl Chicago (17ú heag.)

Brue, Stanley L. Essentials of Economics. 4th edition. McGraw-Hill Education, 2019.

Lua MLA (9ú heag.)

Brue, Stanley L. Essentials of Economics. 4th edition. McGraw-Hill Education, 2019.

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